The English version is more detailed and the calculation formula is very accurate (I have checked it at multiple points). The Chinese version is a Japanese product promotion introduction, and the calc...
[i=s] This post was last edited by fyaocn on 2015-10-14 14:51 [/i] 1. After getting the board and analyzing the routine, I tested the routine for the digital tube display as follows. Easy, so the foll...
One day when I was chatting in a group, I saw a wonderful article about security prevention written by a netizen. I specially excerpted it and read it in my spare time. In the article, the author used...
I have a WINCE hardware, the CPU is RMI's AU1200, the FLASH is S29GL256N, and the RAM is DDRII 128M. I accidentally deleted YAMON when I used YAMON to burn AUTOBOOT, and now the whole system is hangin...
Computer Control Devices ZJU Guangxin Zhang : https://training.eeworld.com.cn/course/4858This series introduces the overview of computer control, programmable controllers, CP1H series PLC, SIMATIC S7-...
I found a USB cable for the emergency lamp and changed it to a USB-powered small desk lamp, so that I can use it every day. The charging part was previously made with a MAXIM chip, which can only char...
1 Introduction
The multifunctional monitor is a commonly used clinical medical device. It can display the patient's electrocardiogram (ECG), respiration (RESP), blood oxygen saturation (SP...[Details]
The U.S. Food and Drug Administration (FDA) points out that home health care is the fastest growing area in the medical device industry. Driven by the increase in average life expectancy, the increasi...[Details]
Ultrasound systems are among the most sophisticated and complex signal processing instruments in widespread use today. Like any complex instrument, there are many trade-offs to be made in implement...[Details]
How can we get the highest performance from an A/D converter? The obvious answer is to use good design and board layout, but there are other techniques that can be used to improve performance. We can ...[Details]
In response to a series of problems caused by the backwardness of traditional water meters, the Ministry of Construction of China has proposed the requirement of "three meters per household" for ur...[Details]
Lithium-ion battery is a widely used rechargeable battery. It has the advantages of high single-cell operating voltage, small size, light weight, high energy density, long cycle life, rapid full ch...[Details]
AD8302
Introduction
AD8302 is a monolithic integrated circuit for RF/IF amplitude and phase measurement from ADI. It is mainly composed of two precisely matched broadband logarithmic det...[Details]
Abstract: Based on the research of the communication process between the reader and the RFID tag, combined with the EPC C1G2 protocol and ISO/IEC18000.6 protocol, a digital circuit of RFID tag appl...[Details]
E6601A is Agilent's new generation of comprehensive tester platform, designed to provide low-cost calibration solutions for mobile phone manufacturers. It uses an open Windows® XP platform, allowi...[Details]
This article first briefly introduces the working principles of current mode and voltage mode and their respective advantages and disadvantages; then discusses the ideal voltage mode using output c...[Details]
introduction
Usually, there are many input and output ports in RF systems, and it is expensive to use a multi-port network analyzer to analyze scattering characteristics. Therefore, it is ...[Details]
Today's mobile phone production testing faces an increasingly complex environment, with challenges of multiple frequency bands and multiple standards, pressure on production test speed, and pres...[Details]
Among the many candidate standards for China's mobile TV, the CMMB standard proposed by the Broadcasting Science Research Institute of the State Administration of Radio, Film and Television is aime...[Details]
Preface
In the analog era, due to the unchanged specifications and relatively simple device connections, as well as users' low requirements for image quality, the relatively simple environment...[Details]
In a Class D audio power amplifier, the preamplifier is a relatively important module. It is located at the front of the entire topology and completes the processing of the input signal source,...[Details]
Test/Measurement
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